Cabling Of Remote Control Functionality - ABB PQFS Installation, Operation And Maintenance Instructions

Case 5:
Case 6:
It is recommended that for additional functions that are cabled to the PQFS, a connector
approach is used such as is the case for the internal communication and PQF-Manager
power supply.
WARNING: Before cabling any of the circuits discussed below, switch off the
power supply to the filter. When the filter has already been installed on site, this is
done by opening the protection system located just upstream of the filter and
opening the auxiliary fuse box present in the filter. Wait at least 25 minutes to allow
for the DC capacitors to discharge when the filter has been connected to the
network before. Failure to do so may result in lethal injury or death.
After making and verification of all the electrical connections
6.12.1

Cabling of remote control functionality

The PQFS has the possibility to be controlled by remote control. An example of this
approach is a drive that is switched on at a location and which automatically gives a start
command to the filter. When the drive is then stopped, the drive sends automatically a
stop command to the filter too. This section gives an example of how the cabling has to
be done on the filter side.
Any of the two digital inputs on the PQF-Manager (Cf.
the remote control functionality. The electrical requirements of the digital inputs are given
in Table 60
implement the remote control functionality on Digital Input 1.
56 Electrical design and installation ç Manual Power Quality Filter PQFS
Cabling of main/auxiliary control functionality.
Implementation of local start/stop buttons.
· Close the auxiliary fuse box of the filter units starting from the last slave and
ending with the master unit
· Restore the top cover(s) of the filter units including the connection of the PQF-
Manager to the master unit
· The power to the filter may then be restored
(Filter characteristics section).
Figure 48) can be used to cable
Figure 50 gives an example of how to